ADR Hazard Warning Labels > Class 5 Labels
Oxidizers are defined by dangerous goods regulations as substances which may cause or contribute to combustion, generally by yielding oxygen as a result of a redox chemical reaction. Organic peroxides are substances which may be considered derivatives of hydrogen peroxide where one or both hydrogen atoms of the chemical structure have been replaced by organic radicals.
Class 5.1: Oxidizing substances labels.
Class 5.2: Organic peroxides labels.